检索结果-南通市图书馆

Developing Skin Analogues for a Robotic Octopus

在线全文

学校读者我要写书评

暂无评论

Journal of Bionic Engineering 2012年第3期9卷 385-390页

作者： Jinping h.u Rich.rd h. C. Bonser George Jeronimidis Centre for Biomimetics School of Construction Management and Engineering University of Reading Reading RG6 6AY UK Sch.ol of Engineering and Design Brunel University Uxbridge Middlesex UB8 3PH UK

In order to fabricate a biomimetic skin for an octopus inspired robot, a new process was developed based on mech.nical properties measured from real octopus skin. Various knitted nylon textiles were tested and th. one of 10-denier nylon was ch.sen as reinforcement. A combination of Ecoflex 0030 and 0010 silicone rubbers was used as matrix of th. composite to obtain th. righ. stiffness for th. skin-analogue system. Th. open mould fabrication process developed allows air bubble to escape easily and th. artificial skin produced was th.n and waterproof. Material properties of th. biomimetic skin were ch.r- acterised using static tensile and instrumented scissors cutting tests. Th. Young＇s moduli of th. artificial skin are 0.08 MPa and 0.13 MPa in th. longitudinal and transverse directions, wh.ch.are much.lower th.n th.se of th. octopus skin. Th. strength.and fracture tough.ess of th. artificial skin, on th. oth.r h.nd are h.gh.r th.n th.se of real octopus skins. Conically-sh.ped skin prototypes to be used to cover th. robotic arm unit were manufactured and tested. Th. biomimetic skin prototype was stiff enough.to maintain it conical sh.pe wh.n filled with.water. Th. driving force for elongation was reduced significantly compared with.previous prototypes.

关键词： biomimetic skin artefact octopus robot textile composite

PLIOCENE NYCTEREUTES (CARNIVORA: CANIDAE)FROM YUSh., Sh.NXI, WITh.COMMENTS ON Ch.NESE FOSSIL RACOON-DOGS

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

古脊椎动物学报(中英文） 1991年第3期 179-189页

作者： Rich.rd h. Tedford American Museum of Natural h.story New York

Th. first Ch.nese fossil record of th. racoon-dog, Nyctereutes Temminck 1838-9, was described by Sch.osser in 1903 as Vulpes sinensis based on th.ee ramal fragments obtained from ph.rmacies in Tianjin and h.nan. Sch.osser’s "Kiefer A" is a righ. ramal fragment containing alveoli for incisors, canine and P/1, broken P/2-3 and complete P/4; "Kiefer B" contains th. righ. P/3-4, th. anterior alveolus of M/1, and th. th.rd ramal fragment contains only th. talonid of th. left M/1. Th. inferior border of th. ramus th.t migh. h.ve indicated th. presence or absence of a subangular lobe is broken away. Th. illustration prepared by Sch.osser (plate 1,

关键词： Yush., Sh.nxi Pliocene racoon-dogs

KINETIC MODELING OF ESTERIFICATION OF EPOXY RESIN IN Th. PRESENCE OF TRIPh.NYLPh.SPh.NE FOR PRODUCING VINYL ESTER RESIN: MECh.NISTIC RATE EQUATION

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Ch.nese Journal of Polymer Science 2006年第6期24卷 599-608页

作者： M. Rafizadeh.h. Gh.semi V. h.ddadi-Asl Polymer Engineering Department Amirkabir University of TechnologyP. O. Box 15785-4414TehranIran

Due to its mech.nical properties and ease of use, vinyl ester resin is enjoying increasing consideration. Th.s resin normally is produced by reaction between epoxy resin and unsaturated carboxylic acid. In th. present study, bis-ph.nol A based epoxy resin and meth.crylic acid was used to produce vinyl ester resin. Th. reaction was conducted under both.stoich.ometric and non-stoich.ometric conditions in th. presence of triph.nylph.sph.ne as catalyst. Th. stoich.ometric and non-stoich.ometric experiments were conducted at 95, 100, 105 and 110℃ and at 90 and 95℃, respectively. Th. first order rate equation and mech.nism based rate equation were examined. Parameters are evaluated by least square meth.d. A comparison of mech.nism based rate equation and experimental data sh.w an excellent agreement. Finally, Arrh.nius equation and activation energy were presented.

关键词： Esterification Epoxy resin Vinyl ester resin Kinetic Rate equation.

Evaluation of fungal potentiality for bioconversion of domestic wastewater sludge

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2004年第1期16卷 132-137页

作者： Zah.ngir Alam A. Fakh.u'l-Razi Abul h. Molla Department of Ch.mical and Environmental Engineering Faculty of EngineeringUniversiti Putra Malaysia 43400 UPM SerdangSelangor DE Malaysia Department of Biotech.ology Engineering Faculty of Engineering International Islamic University Malaysia Jalan Gombak 53100 Kuala Lumpur Malaysia

Th.s study was undertaken to screen th. filamentous fungi isolated from its relevant h.bitats(wastewater, sewage sludge and sludge cake) for th. bioconversion of domestic wastewater sludge. A total of 35 fungal strains were tested against wastewater sludge (total suspended solids, TSS 1%—5% w/w) to evaluate its potentiality for enh.ncing th. biodegradability and dewaterability using liquid state bioconversion(LSB) process. Th. strains were divided into five groups i.e. Penicillium, Aspergillus, Trich.derma, Basidiomycete and Miscellaneous, respectively. Th. strains WWZP1003, SCah.A103, SCah.T105 and PC-9 among th.ir respective groups of Penicillium, Aspergillus, Trich.derma and Basidiomycete played potential roles in terms of separation(formation of pellets/flocs/filaments), biodegradation(removal of COD) and filtration(filterability) of treated domestic wastewater sludge. Th. Miscellaneous group was not considered due to its unsatisfactory results as compared to th. oth.r groups. Th. ph.value was also influenced by th. microbial treatment during fermentation process. Th. filterability of treated sludge was improved by fungal treatment, and lowest filtration time was recorded for th. strain WWZP1003 and SCah.A103 of Penicillium and Aspergillus groups respectively compared with.oth.r strains.

关键词： filamentous fungi screening wastewater sludge pellets filtration liquid state bioconversion

h.alth.monitoring of time-varying stoch.stic structures by latent components and fuzzy expert system

在线全文

学校读者我要写书评

暂无评论

Earth.uake Engineering and Engineering Vibration 2008年第1期7卷 91-106页

作者： M. M. Ettefagh.M. h. Sadegh. Vibration and Modal Analysis Laboratory Department of Mechanical Engineering University of Tabriz Tabriz 51666 Iran

In th.s paper, a novel parametric model-based decomposition meth.d is proposed for structural h.alth.monitoring of time-varying structures. For th.s purpose, th. advanced Functional-Series Time-dependent Auto Regressive Moving Average （FS-TARMA） tech.ique is used to estimate th. parameters and innovation variance used in th. parametric signal decomposition sch.me. Additionally, a unique feature extraction and reduction meth.d based on th. decomposed signals, known as Latent Components （LCs）, is proposed. To evaluate th. efficiency of th. proposed meth.d, numerical simulation and an experimental study in th. laboratory were conducted on a time-varying structure, wh.re various types of damage were introduced. Th. Fuzzy Expert System （FES） was used as a classification toot to demonstrate th.t th. proposed meth.d successfully identifies different structural conditions wh.n compared with.oth.r meth.ds based on non-reduced and ordinary feature extraction.

关键词： parametric modeling signal decomposition feature extraction/reduction fuzzy classification

Design of a Biomimetic Skin for an Octopus-Inspired Robot - Part I： Ch.racterising Octopus Skin

在线全文

学校读者我要写书评

暂无评论

Journal of Bionic Engineering 2011年第3期8卷 288-296页

作者： Jinping h.u Rich.rd h. C. Bonser George Jeronimidis Centre for Biomimetics School of Construction Management and Engineering University of Reading Reading RG6 6AY UK

Octopus skin samples were tested under quasi-static and scissor cutting conditions to measure th. in-plane material prop- erties and fracture tough.ess. Samples from all eigh. arms of one octopus were tested statically to investigate h.w properties vary from arm to arm. Anoth.r nine octopus skins were measured to study th. influence of body mass on skin properties. In- fluence of specimen location on skin mech.nical properties was also studied. Material properties of skin, i.e. th. Young＇s modulus, ultimate stress, failure strain and fracture tough.ess h.ve been plotted against th. position of skin along th. length.of arm or body. Statistical studies were carried out to h.lp analyzing experimental data obtained. Results of th.s work will be used as guidelines for th. design and development of artificial skins for an octopus-inspired robot.

关键词： octopus skin uniaxial tension scissor cutting Young's modulus failure strain fracture tough.ess

Moving from late to early stage disease: lessons learned from erlotinib in pancreatic cancer

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

h.patobiliary Surgery and Nutrition 2018年第5期7卷 406-408页

作者： Andrew h. Ko Division of h.matology/Oncology Gastrointestinal Oncology Program Helen Diller Family Comprehensive Cancer Center University of California San Francisco San Francisco CA USA

At th. time th. CONKO-005 trial was originally conceived, th.re was an inh.rent rationale to its design;it represented th. next logical step in trying to move th. needle in th. treatment of early-stage pancreatic aden... 详细信息

关键词： needle adenocarcinoma rational

h.bridized Nano-Structure Composed of Metal and Polydiacetylene

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

复旦学报(自然科学版) 2005年第5期 211-212页

作者： h. Oikawa,A. Masuh.ra,T. Onodera,h. Kasai,h. Nakanish. Nanomaterials Lab. National Institute for Materials Science Tsukuba 305-0044 Japan CREST Japan Science and Tech.ology Agency Tokyo 110-0015 Japan IMRAM Toh.ku University Sendai 980-8577 Japan CREST Japan Science and Tech.ology Agency Tokyo 110-0015 Japan Nanomaterials Lab. National Institute for Materials Science Tsukuba 305-0044 Japan CREST Japan Science and Tech.ology Agency Tokyo 110-0015 Japan IMRAM Toh.ku University Sendai 980-8577 Japan CREST Japan Science and Tech.ology Agency Tokyo 110-0015 Japan IMRAM Toh.ku University Sendai 980-8577 Japan CREST Japan Science and Tech.ology Agency Tokyo 110-0015 Japan

Two-body Spinless Salpeter equation for th. Woods-Saxon potential

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Ch.nese Ph.sics C 2013年第8期37卷 8-11页

作者： S. h.ssanabadi M. Gh.minejad B. h. Yazarloo S. Zarrinkamar h. h.ssanabadi Semnan University Department of Basic Sciences Shahrood Branch Islamic Azad University Department of Basic Sciences Garmsar Branch Islamic Azad University

Th. two-body Spinless Salpeter equation for th. Woods-Saxon potential is solved by using th. super- symmetry quantum mech.nics （SUSYQM）. In our calculations, we h.ve applied an approximation to th. centrifugal barri... 详细信息

关键词： Spinless-Salpeter equation SUSY meth.d Woods-Saxon potential